diy.py

# 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
#file1=open(r"C:\Users\GT\Desktop\走人.txt","w",encoding="utf-8")
with open(r"C:\Users\GT\Desktop\走人.txt","r",encoding="utf-8")as file1:
    
    #file1.write("sb 2000000本\n")
    #file1.write("sa 37890987654本\n")
    #file1.write("a\n")
    for date in file1:
        if "sb 2000000本" in date:
            print("1234567890")